Determine If Cos 2 x + Sin 2 x = Cos X

The Answer of Determine If Cos 2 x + Sin 2 x = Cos X

The Answer of Determine If Cos 2 x + Sin 2 x = Cos X

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Determine If Cos²x + Sin²x = Cos X

Question 54

Determine if cos²x + sin²x = cos x is conditional or an identity.

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